SERVICE - WHAT SERVICE?

In December 2014, my Ipad stopped working. I was away and only got back in Jan 15. Went to Iphone store to be told it was not my Ipad but my SIM card. Went to Vodacom shop in Fourways Mall where I got the most disgusting service. Was told it was SIM theft. Someone, posing as me had upgraded MY account, got a brand new iphone 6 and I was paying their bill. So no more data but was not on a contract! It is an inside job as nobody else has my info like Vodacom. Receive my bills on computer. Makes one wonder. I then had to stand in queues in get police affidavit, submit it via internet to Vodacom and 3 months later I am still being billed over R700.00 when I was on a R99.00 contract. Despite calls, emails etc. Vodacom had done absolutely ZERO! How amazing!!!!! What more can one expect for them? I am seriously disgusted and unhappy!!!